The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 15, 2018

Filed:

Jun. 18, 2014
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Hidetada Nago, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/42 (2006.01); H02J 7/02 (2016.01); H02J 50/40 (2016.01); H02J 50/80 (2016.01); H02J 50/12 (2016.01); H02J 7/00 (2006.01); H02J 17/00 (2006.01);
U.S. Cl.
CPC ...
H02J 7/025 (2013.01); H02J 7/00 (2013.01); H02J 17/00 (2013.01); H02J 50/12 (2016.02); H02J 50/40 (2016.02); H02J 50/80 (2016.02); H02J 2007/0096 (2013.01);
Abstract

A wireless power transmission apparatus includes a first antenna unit configured to perform wireless power transmission with another apparatus, a communication unit configured to include a second antenna unit which is different from the first antenna unit and perform communication for authentication in the wireless power transmission with the other apparatus using electric power received through the first antenna unit, a load configured to operate using the electric power received through the first antenna unit; and a transformation unit configured to be connected to the first antenna unit and perform impedance transformation. The transformation unit performs impedance transformation in accordance with electric power consumed by the communication unit during the communication for authentication performed by the communication unit and performs impedance transformation in accordance with electric power consumed by the load when the authentication is successfully performed.


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